Gene Transfer in Plants
In a plant tumour cell

complete Ti plasmid is incorporated in plant nuclear DNA
may vary from plant to plant
only a small specific segment of callus T DNA is incorporated
different parts of the Ti-plasmid are incorporated

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Gene Transfer in Plants
Crown gall tissue

can be cultivated in vitro in absence of bacteria
both (a) and (b)
shows tumorous properties only in presence of bacteria
retains tumorous properties when cultivated

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Gene Transfer in Plants
Opines are

amino acid derivatives found in tumor tissues
amino acid derivatives found in both normal as well as tumor tissues
None of these
amino acid derivatives found in normal tissues

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